A balloon contains a mixture of helium and nitrogen gas. The partial pressure of the helium is 93 kPa. If the total pressure of the balloon is 101 kPa, what is the partial pressure of the nitrogen gas?

Match the mixture with the substance// i really need on this guys (it’s a pic btw)

Who discovered a pattern to the elements in 1869?

To prevent the presence of air, noble gases are placed over highly reactive chemicals to act as inert "blanketing" gases. a chemical engineer places a mixture of noble gases consisting of 4.37 g of he, 13.36 g of ne, and 36.65 g of kr in a piston-cylinder assembly at stp. calculate the partial pressure in torr of kr.